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United States Patent | 5,297,438 |
Alles ,   et al. | March 29, 1994 |
An electrical circuit containing novel piezoresistive sensor is disclosed. The sensor is connected to a source of direct current, and a manometric pressure of at least about 15 p.s.i.g. is applied to the sensor.
Inventors: | Alles; Aldo B. (Youngsville, NY); Schulze; Walter A. (Alfred Station, NY) |
Assignee: | Alfred University (Alfred, NY) |
Appl. No.: | 992241 |
Filed: | December 14, 1992 |
Current U.S. Class: | 73/727; 73/721; 73/777; 73/862.627; 338/4; 374/185 |
Intern'l Class: | G01L 009/06; 774; 753; 754; 708 |
Field of Search: | 73/721,727,862.627,862.628,862.629,862.631,862.632,862.633,862.634,862.635,777 338/4 264/63 374/185 |
5225126 | Jul., 1993 | Alles et al. | 264/63. |